Water can be broken into its constituents by

Options

A. passing electric current
B. evaporation
C. separating funnel
D. melting point

Answer

**Step-by-Step Solution:**

1. **Understanding Water as a Compound:**
- Water is a chemical compound with the formula H₂O, which means it consists of two hydrogen (H) atoms and one oxygen (O) atom.

2. **Identifying the Process of Breaking Down Water:**
- To break water into its constituent elements (hydrogen and oxygen), we need to perform a chemical reaction that separates these elements.

3. **Recognizing the Type of Reaction:**
- The process of breaking down a compound into its individual elements is known as a decomposition reaction. In this case, we are specifically looking at the decomposition of water.

4. **Electrolytic Decomposition:**
- The decomposition of water can be achieved through a method called electrolytic decomposition. This involves passing an electric current through water, which causes it to split into hydrogen and oxygen gases.

5. **Conclusion:**
- Therefore, the correct method to break water into its constituents is by electrolytic decomposition, which involves passing an electric current through the water.

**Final Answer:**
Water can be broken into its constituents by electrolytic decomposition.

---